What type of failure is typically associated with excessive axial vibration?

Excessive axial vibration is primarily linked to thrust bearing issues. Thrust bearings are specifically designed to support axial loads and manage the positioning of rotating machinery components. When excessive axial vibration occurs, it indicates that there may be an imbalance or misalignment that is affecting the performance of the thrust bearings. This can lead to premature wear, excessive heat generation, and ultimately, failure of the bearings.

In contrast, pump seal failures are generally associated with leakage rather than axial vibration. Electrical motor failures may relate to a variety of issues, including electrical imbalances or mechanical faults, but they aren’t specifically attributed to axial conditions. Gearbox failures can arise from various types of stress, typically including radial vibrations due to gear misalignment rather than solely axial vibration. Therefore, thrust bearing issues stand out as the correct type of failure directly associated with excessive axial vibration.